Used primarily in organic light-emitting diodes (OLEDs) as a hole-transporting material due to its high thermal stability and excellent film-forming properties. Its rigid molecular structure enhances charge mobility, making it effective in improving device efficiency and longevity. Commonly found in display technologies and solid-state lighting where stable blue emission and energy transfer are required. Also employed in multilayer OLED architectures to prevent exciton quenching at electrode interfaces.